| Presentation | 2015-06-18 Compensation of Nonlinear Distortions for Parametric Array Loudspeakers Yuta Hatano, Satoshi Kinoshita, Chuang Shi, Yoshinobu Kajikawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Reproduction sound of the parametric array loudspeaker (PAL) contains many nonlinear distortions. Nonlinear distortions can be compensated by using the linearization system based on Volterra lters. In this paper, we compare the compensation amount of nonlinear distortions in cases where the amplitude of the input signal tothe PAL is changed. As a result, the compensation amount is decreased for large input signal compared with small input signal because the small input signal yields inaccurate Volterra kernels. We therefore propose an identification method where the 2nd order Volterra kernel is identified by separating the 2nd and 4th order nonlinear components in order to increase the estimation accuracy. Experimental results demonstrate that the proposed identification method can improve the identification accuracy and yield high compensation ability to the linearization system compared with the conventional identification method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Volterra fiter / Parametric Array Loudspeaker(PAL) / Nonlinear Distortion / Total Harmonic Distortion (THD) |
| Paper # | CAS2015-19,VLD2015-26,SIP2015-50,MSS2015-19 |
| Date of Issue | 2015-06-10 (CAS, VLD, SIP, MSS) |
| Conference Information | |
| Committee | MSS / CAS / SIP / VLD |
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| Conference Date | 2015/6/17(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Otaru University of Commerce |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | System, signal processing and related topics |
| Chair | Satoshi Yamane(Kanazawa Univ.) / Satoshi Tanaka(Murata) / Osamu Houshuyama(NEC) / Yusuke Matsunaga(Kyushu Univ.) |
| Vice Chair | Morikazu Nakamura(Univ. of Ryukyus) / Toshihiko Takahashi(Niigata Univ.) / Makoto Nakashizuka(Chiba Inst. of Tech.) / Masahiro Okuda(Univ. of Kitakyushu) / Takashi Takenana(NEC) |
| Secretary | Morikazu Nakamura(Yamaguchi Univ.) / Toshihiko Takahashi(Toshiba) / Makoto Nakashizuka(Hitachi) / Masahiro Okuda(Tohoku Univ.) / Takashi Takenana(NEC) |
| Assistant | Hideki Kinjo(Okinawa Univ.) / Toshihiro Tachibana(Shonan Inst. of Tech.) / Yohei Nakamura(Hitachi) / Takamichi Miyata(Chiba Inst. of Tech.) / Ittetsu Taniguchi(Ritsumeikan Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Mathematical Systems Science and its applications / Technical Committee on Circuits and Systems / Technical Committee on Signal Processing / Technical Committee on VLSI Design Technologies |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Compensation of Nonlinear Distortions for Parametric Array Loudspeakers |
| Sub Title (in English) | In the case of changing the amplitude of input signal |
| Keyword(1) | Volterra fiter |
| Keyword(2) | Parametric Array Loudspeaker(PAL) |
| Keyword(3) | Nonlinear Distortion |
| Keyword(4) | Total Harmonic Distortion (THD) |
| 1st Author's Name | Yuta Hatano |
| 1st Author's Affiliation | Kansai University(Kansai Univ.) |
| 2nd Author's Name | Satoshi Kinoshita |
| 2nd Author's Affiliation | Kansai University(Kansai Univ.) |
| 3rd Author's Name | Chuang Shi |
| 3rd Author's Affiliation | Kansai University(Kansai Univ.) |
| 4th Author's Name | Yoshinobu Kajikawa |
| 4th Author's Affiliation | Kansai University(Kansai Univ.) |
| Date | 2015-06-18 |
| Paper # | CAS2015-19,VLD2015-26,SIP2015-50,MSS2015-19 |
| Volume (vol) | vol.115 |
| Number (no) | CAS-87,VLD-88,SIP-89,MSS-90 |
| Page | pp.pp.99-102(CAS), pp.99-102(VLD), pp.99-102(SIP), pp.99-102(MSS), |
| #Pages | 4 |
| Date of Issue | 2015-06-10 (CAS, VLD, SIP, MSS) |